100339840

素因数分解:

$2^7\times 5^1\times {\mathrm{156781}}^1$

素因数の和:156800

約数の個数: 32

約数和(自身を含む): 239876460

約数和(自身を除く): 139536620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 156781, 313562, 627124, 783905, 1254248, 1567810, 2508496, 3135620, 5016992, 6271240, 10033984, 12542480, 20067968, 25084960, 50169920, 100339840]

約数ペア:

[(1, 100339840), (2, 50169920), (4, 25084960), (5, 20067968), (8, 12542480), (10, 10033984), (16, 6271240), (20, 5016992), (32, 3135620), (40, 2508496), (64, 1567810), (80, 1254248), (128, 783905), (160, 627124), (320, 313562), (640, 156781)]